CVE-2018-7536

medium

Description

An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.

References

https://www.djangoproject.com/weblog/2018/mar/06/security-releases/

https://lists.debian.org/debian-lts-announce/2018/03/msg00006.html

http://www.securityfocus.com/bid/103361

https://usn.ubuntu.com/3591-1/

https://www.debian.org/security/2018/dsa-4161

https://access.redhat.com/errata/RHSA-2018:2927

https://access.redhat.com/errata/RHSA-2019:0082

https://access.redhat.com/errata/RHSA-2019:0051

https://access.redhat.com/errata/RHSA-2019:0265

Details

Source: MITRE

Published: 2018-03-09

Updated: 2021-08-04

Type: CWE-185

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Impact Score: 1.4

Exploitability Score: 3.9

Severity: MEDIUM